The document provides information about DIALux lighting design software version 4.9, including:
- New features in version 4.9 such as improvements to existing functionality.
- Instructions for installing DIALux from an internet download or CD.
- An overview of the DIALux user interface and main functions for creating and editing lighting projects, inserting lights, furniture and textures, performing lighting calculations, and generating outputs.
- Information on additional features for tasks like exterior lighting, emergency lighting, and working with standards for road lighting design.